Interface ClassLoadingMXBean
-
- All Superinterfaces:
- PlatformManagedObject
public interface ClassLoadingMXBean extends PlatformManagedObject
The management interface for the class loading system of the Java virtual machine.A Java virtual machine has a single instance of the implementation class of this interface. This instance implementing this interface is an MXBean that can be obtained by calling the
ManagementFactory.getClassLoadingMXBean()method or from theplatform MBeanServer.The ObjectName for uniquely identifying the MXBean for the class loading system within an MBeanServer is:
It can be obtained by calling thejava.lang:type=ClassLoadingPlatformManagedObject.getObjectName()method.- Since:
- 1.5
- See Also:
-
ManagementFactory.getPlatformMXBeans(Class), JMX Specification., Ways to Access MXBeans
-
-
Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method and Description intgetLoadedClassCount()Returns the number of classes that are currently loaded in the Java virtual machine.longgetTotalLoadedClassCount()Returns the total number of classes that have been loaded since the Java virtual machine has started execution.longgetUnloadedClassCount()Returns the total number of classes unloaded since the Java virtual machine has started execution.booleanisVerbose()Tests if the verbose output for the class loading system is enabled.voidsetVerbose(boolean value)Enables or disables the verbose output for the class loading system.-
Methods inherited from interface java.lang.management.PlatformManagedObject
getObjectName
-
-
-
-
Method Detail
getTotalLoadedClassCount
long getTotalLoadedClassCount()
Returns the total number of classes that have been loaded since the Java virtual machine has started execution.- Returns:
- the total number of classes loaded.
getLoadedClassCount
int getLoadedClassCount()
Returns the number of classes that are currently loaded in the Java virtual machine.- Returns:
- the number of currently loaded classes.
getUnloadedClassCount
long getUnloadedClassCount()
Returns the total number of classes unloaded since the Java virtual machine has started execution.- Returns:
- the total number of unloaded classes.
isVerbose
boolean isVerbose()
Tests if the verbose output for the class loading system is enabled.- Returns:
- true if the verbose output for the class loading system is enabled; false otherwise.
setVerbose
void setVerbose(boolean value)
Enables or disables the verbose output for the class loading system. The verbose output information and the output stream to which the verbose information is emitted are implementation dependent. Typically, a Java virtual machine implementation prints a message each time a class file is loaded.This method can be called by multiple threads concurrently. Each invocation of this method enables or disables the verbose output globally.
- Parameters:
-
value- true to enable the verbose output; false to disable. - Throws:
-
SecurityException- if a security manager exists and the caller does not have ManagementPermission("control").
-
Submit a bug or feature
For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
Copyright © 1993, 2022, Oracle and/or its affiliates. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.
